By September 2012, almost half of the NFL had ditched the old-school, three-ring playbook in favor of Apple’s iPad. Tablets carry some obvious advantages: they’re interactive, they’re collaborative, they can play video, etc.
There are, of course, the disadvantages. Last summer, Denver Broncos linebacker DJ Williams tweeted a photo of a page from the team’s playbook, innocently updating his status by discussing a new position he was trying to learn. The team had Williams delete the tweet soon thereafter.